Method and apparatus for feeding a product including fines

Details Method and apparatus for feeding a product including fines Method and apparatus for feeding a product including fines

1982-10-29

1986-02-11

Rolla, Joseph J.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Separating means

209674, 209682, 209920, 177123, 222 56, 222 77, B07B 1305, G01G 1308

Patent

active

045694460

ABSTRACT:
This relates to a method of and an apparatus for feeding a product which includes fines to a weigh hopper. In lieu of the usual feeder pan, the last feeder pan in the feeder system is a duplex feeder pan including an upper feeding pan or level and a lower feeding pan or level. The upper feeder pan is provided with selected apertures therein so that fines will be separated from the remainder of the product and directed into the lower feeder pan. During the normal filling of the weigh hopper, both the upper feeder pan and the lower feeder pan will discharge into the weigh hopper. When a pre-selected underweight condition occurs, at least a part of the product from the upper pan will be diverted from immediately entering into the weigh hopper, while the feeding of the fines will continue so as to bring the weight of the product within the weigh hopper up to the pre-selected weight with a minimum of overweight.

REFERENCES:
patent: 3253699 (1966-05-01), Schneider
patent: 3291233 (1966-12-01), Mayer
patent: 3506118 (1970-04-01), Illuzzi
patent: 3540538 (1970-11-01), Connors
patent: 3784007 (1974-01-01), Skrmetta
patent: 4010809 (1977-03-01), Hobart

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